Marjorie Hayward plays Purcell

Earlier, when I was doing my "reissue" program, I had occasion to post a recording by Marjorie Hayward, that of the Beethoven "Kreutzer" Sonata with Una Bourne, and to direct attention to other Hayward recordings available at the CHARM website.  Well, here's one CHARM doesn't have (although they do have a very fine Frederick Grinke recording of the same work, made a quarter of a century later).  It's a perfect gem of a Purcell sonata, first published only in 1901:

Purcell: Sonata in G minor, Z. 780
Marjorie Hayward, violin; Madame Adami, piano
Recorded August 15, 1919
HMV C 935, one 78-rpm record
Link (FLAC file, 20.48 MB)
Link (MP3 file, 7.66)

Does anyone out there have any information about the elusive Mme. Adami, who accompanies Miss Hayward on this recording?  Even her first name seems lost to posterity.  She must have been the Gramophone Company's house accompanist.  The HMV catalogues of the early 1920s (downloadable from the British Library) do not appear to have deemed it neccesary to credit her by name, except for this one disc.  Nor, of the sixteen or so records that CHARM possesses for which she plays accompaniments, does her name appear on any of the labels.